Truck City v1.1.5 has just been released. This changelog also includes changes made in v1.1.4:
Improvement: performance improvement on research center lighting. The previous method may cause severe framerate drops on very big (hundreds of production buildings) research centers
Improvement: one-way roads directionality algorithm improved
Improvement: factory information tooltip text minor improvements
Bugfix: copy-pastig one-way road blueprints may cause the wrong tile to be pasted